fits  36-47 Knucklehead (NU)

Standard size replacement. Dimensions: 1.750″ head dia. x 0.3765″ stem dia. x 3.590″ Overall length. KPMI valves are manufactured in the U.S.A. by a dedicated staff and personnel with hands-on experience in stock and high performance. Quality materials and the latest CNC and 3-D computer modelling equipment make sure each and every Kibblewhite Precision Machining valve train component is top of the line. All Black Diamond valves are one-piece Stainless Steel forgings with a black nitrided finish. Repl. 18071-36.

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Home > Parts > Intake > KPMI, Black Diamond valve, intake. STD

fits  36-47 Knucklehead (NU)

Standard size replacement with oversized head. Dimensions: 1.940″ oversized head dia. x 0.3765″ stem dia. x 3.590″ Overall length. KPMI valves are manufactured in the U.S.A. by a dedicated staff and personnel with hands-on experience in stock and high performance. Quality materials and the latest CNC and 3-D computer modelling equipment make sure each and every Kibblewhite Precision Machining valve train component is top of the line. All Black Diamond valves are one-piece Stainless Steel forgings with a black nitrided finish. Repl. none.

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Home > Parts > Intake > KPMI, Black Diamond valve, intake. Oversize

fits  36-47 Knucklehead (NU)

Standard size replacement. Dimensions: 1.750″ head dia. x 0.3765″ stem dia. x 3.670″ Overall length. KPMI valves are manufactured in the U.S.A. by a dedicated staff and personnel with hands-on experience in stock and high performance. Quality materials and the latest CNC and 3-D computer modelling equipment make sure each and every Kibblewhite Precision Machining valve train component is top of the line. All Black Diamond valves are one-piece Stainless Steel forgings with a black nitrided finish. Repl. 18081-36.

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Home > Parts > Engine > Top End > Valves > KPMI, Black Diamond valve, exhaust. STD

fits  57-83 XL Sportster (NU)

Standard size replacement with oversized head. Dimensions: 1.630″ head dia. x 0.3384″ stem dia. x 3.510″ overall length. KPMI valves are manufactured in the U.S.A. by a dedicated staff and personnel with hands-on experience in stock and high performance. Quality materials and the latest CNC and 3-D computer modelling equipment make sure each and every Kibblewhite Precision Machining valve train component is top of the line. All Black Diamond valves are one-piece Stainless Steel forgings with a black nitrided finish.

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Home > Parts > Engine > Top End > Valves > KPMI, Black Diamond valve, exhaust. Oversize

fits  86-03 XL883-1200 conversion (NU)

Used in a 883-1200 conversions for better breathing. This valve offers the larger 1200 size head diameter with the required shorter 883 overall length. Dimensions: 1.715″ head dia. x 0.3100″ stem dia. x 4.550″ overall length. KPMI valves are manufactured in the U.S.A. by a dedicated staff and personnel with hands-on experience in stock and high performance. Quality materials and the latest CNC and 3-D computer modelling equipment make sure each and every Kibblewhite Precision Machining valve train component is top of the line. All Black Diamond valves are one-piece Stainless Steel forgings with a black nitrided finish.

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Home > Parts > Intake > KPMI, Black Diamond valve, intake. 883-1200 conversion

fits  86-03 XL883-1200 conversion (NU)

Used in a 883-1200 conversions for better breathing. This valve offers the larger 1200 size head diameter with the required shorter 883 overall length. Dimensions: 1.715″ head dia. x 0.3100″ stem dia. x 4.550″ overall length. KPMI valves are manufactured in the U.S.A. by a dedicated staff and personnel with hands-on experience in stock and high performance. Quality materials and the latest CNC and 3-D computer modelling equipment make sure each and every Kibblewhite Precision Machining valve train component is top of the line. All Black Diamond valves are one-piece Stainless Steel forgings with a black nitrided finish.

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Home > Parts > Engine > Top End > Valves > KPMI, Black Diamond valve, exhaust. 883-1200 conversion